C
CreatorFeb. 3, 2017, 8:06 a.m.

Qml C++

c++, qml

Как показать в Qt Widgets вывести QtQuick? Что бы можно было потом через c++ управлять объектами в qml. Интересует именно как поместить qml в qtwidgets. Делал когда то раньше, но забыл как.

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1
Evgenii Legotckoi
  • Feb. 3, 2017, 11:51 a.m.
  • The answer was marked as a solution.

Не очень конкретный вопрос, но как вариант можно воспользоваться классом QQuickWidget .

Для это добавляем в Pro файл модуль quickwidgets и файл ресурсов для QML

QT       += core gui quickwidgets

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = qmlwidget
TEMPLATE = app

DEFINES += QT_DEPRECATED_WARNINGS

SOURCES += main.cpp\
        widget.cpp

HEADERS  += widget.h

FORMS    += widget.ui

RESOURCES += \
    qml.qrc

Объявляем объект класса QQuickWidget в заголовочном файле окна, в котором будем располагать данный объект.

#ifndef WIDGET_H
#define WIDGET_H

#include <QWidget>
#include <QQuickWidget>

namespace Ui {
class Widget;
}

class Widget : public QWidget
{
    Q_OBJECT

public:
    explicit Widget(QWidget *parent = 0);
    ~Widget();

private:
    Ui::Widget* ui;
    QQuickWidget* m_quickWidget;
};

#endif // WIDGET_H

Ну и инициализируем данный объект QQuickWidget с установкой в него файла QML, который будет рендериться.

#include "widget.h"
#include "ui_widget.h"

Widget::Widget(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Widget)
{
    ui->setupUi(this);
    m_quickWidget = new QQuickWidget(this) ;
    m_quickWidget->setSource(QUrl("qrc:/QmlLabel.qml"));
    m_quickWidget->setResizeMode(QQuickWidget::SizeRootObjectToView);
    ui->gridLayout->addWidget(m_quickWidget, 1, 0);
}

Widget::~Widget()
{
    delete ui;
}

Сам файл QML:

import QtQuick 2.5
import QtQuick.Controls 2.1

Item {

    Text {
        id: text
        text: qsTr("Hello world")

        anchors.centerIn: parent
    }

}

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